Installation Guide

ManualsBrandsSchluter Systems ManualsBathroomKerdi-Drain Grate 4-in Matte Black Floral

Apply Schluter SET

, ALL-SET

, FAST-SET

or unmodified thin-set mortar to the underside

of the grate frame and place it in the channel

body ensuring full coverage and support of

the frame. Insert the foam spacers in the grate

frame to reinforce it during the remainder of

the installation.

Once all seams and corners have been

completely sealed, the assembly is waterproofed

and ready to be tiled. Apply a uniform layer of

Schluter SET

, Schluter ALL-SET

, Schluter

FAST-SET

, or unmodified thin-set mortar and

comb using a trowel that is appropriate for the

size of the tile. Be sure the trowel groves in the

thin-set are all going the same direction, as

shown in the photo above.

Note: A water test is strongly recommended

before setting tile to verify a successful

installation. Wait 24 hours minimum after the

membrane installation is complete to allow

for final set of thin-set mortar and ensure

waterproof performance at seams and

connections. Refer to local plumbing codes for

any specific requirements in your area.

Slide the plastic height adjustment spacers with

threaded bolts onto the tabs along the inside

of the grate frame to adjust the elevation of the

frame. The spacers may be adjusted simply by

turning the bolts by hand. The elevation should

be set such that the frame will be flush with the

surface of the tile covering.

Solidly embed the tiles in the setting material,

making sure to observe the open time of the

bonding mortar. If the mortar skins over prior to

tile installation, remove and reapply.

Note: Protect the visible surfaces of the grate frame and grate from contact with setting and grouting materials. Setting and grouting materials must be

removed immediately.

Grate

Tiles

Peel the protective foil off the cover strip and

adhere the strip to the bonding flange adjacent

to the wall(s). Position the strip along the

edge of the channel. The cover strip hides

and protects the KERDI surface under the tile

installed in step 3.

When the shower base will be tiled beyond

the ends of the channel, the cover strip is not

required at these locations.

Insert the tile spacers into the channel body.

Install the surrounding tile on the adjoining

walls and shower base up to the spacers

using Schluter SET

, ALL-SET

, FAST-SET

or unmodified thin-set mortar, ensuring full

coverage. Remove all excess setting material.

Tileable Covering Support (Grate D)

Tile is bonded to the covering support using

Schluter SET

, ALL-SET

, FAST-SET

, or

unmodified thin-set mortar. The tile is installed

flush with the front side of the covering

support to provide the drainage opening and

overhanging the back side of the covering

support to cover the bonding flange along the

wall. When the ends of the channel body are

located adjacent to walls, the tile is installed

overhanging the end of the support to cover the

bonding flange along the walls. Measure and

cut the tile such that an approximate 1/16" (1

mm) gap is left at the walls.

Note: When the shower base is tiled beyond

the ends of the channel, the tile on the ends of

the covering support can be cut to either match

the grout joints of the surrounding floor covering

or to provide a perimeter drainage opening.

Grate assembly

Install the tiles on the shower base using Schluter

SET

, ALL-SET

, FAST-SET

, or unmodified

thin-set mortar, ensuring full coverage. Make final

adjustments to ensure the grate frame is flush with

surrounding tiles. Remove foam tile spacers and

plastic height adjustment spacers with threaded

bolts following tile installation.

Periodically remove and check a tile to ensure that

full coverage is being attained.

Note: Coverage may vary with mortar

consistency, angle at which the trowel is held,

substrate flatness, etc. If full coverage is not

achieved, remove and reapply, making sure to

verify proper mortar consistency and application.

For large-format tiles, e.g., 12" x 12" (305 mm x

305 mm) and larger, back-buttering the tiles with a

skim coat of thin-set mortar is a useful way to help

ensure proper coverage. The skim coat can fill in

the concave area on the back of the tile (ceramic

tiles are not perfectly flat) and improve contact with

the mortar combed on the substrate.

Note: The tabs of the drain strainer must be installed in the KERDI-LINE channel body v-grooves to ensure proper drainage.

INSTALLATION — Grate assembly 33